title: Photoelectron imaging of XUV photoionization of CO2 by 13-40 eV synchrotron radiation.
abstract: Valence band photoionization of CO2 has been studied by photoelectron spectroscopy using a velocity map imaging spectrometer and synchrotron radiation. The measured data allow retrieving electronic and vibrational branching ratios, vibrationally resolved asymmetry parameters, and the total electron yield which includes multiple strong resonances. Additionally, the spectrum of low kinetic energy electrons has been studied in the resonant region, and the evolution with photon energy of one of the forbidden transitions present in the slow photoelectrons spectrum has been carefully analyzed, indicating that in the presence of auto-ionizing resonances the vibrational populations of the ion are significantly redistributed.
authors.affiliation: Max Born Institute, Max-Born-Str. 2a, 12489 Berlin, Germany.
authors.forename: Federico J
authors.initials: FJ
authors.lastname: Furch
authors.forename: Sascha
authors.initials: S
authors.lastname: Birkner
authors.forename: Julia H
authors.initials: JH
authors.lastname: Jungmann
authors.forename: Freek
authors.initials: F
authors.lastname: Kelkensberg
authors.forename: Claus Peter
authors.initials: CP
authors.lastname: Schulz
authors.forename: Arnaud
authors.initials: A
authors.lastname: Rouzée
authors.forename: Marc J J
authors.initials: MJ
authors.lastname: Vrakking